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  1. 齐乐娱乐老虎机官网 >  解决方案 >  [齐乐娱乐老虎机官网] PowerIntBridgeSwitch系列300W三相逆变器参考设计DER654

[齐乐娱乐老虎机官网] PowerIntBridgeSwitch系列300W三相逆变器参考设计DER654

关键词:工业驱动 三相逆变器 马达驱动 DER654 时间:2019-01-30 11:22:26       作者:PowerInt       来源:齐乐娱乐老虎机官网

powerint公司的BridgeSwitch系列集成了两个高压N-沟功率FREDFET和低高边驱动器,其集成的半桥大大地简化高压逆变器的开发和生产.内部集成的600V功率FREDFET提供超软和超快二极管,非常适合于硬开关逆变器驱动,主要用在2/3相高压PM和BLDC马达驱动器,高达300W逆变器输出功率,包括洗碗机和冰箱的家用电器,高效率空调的冷凝器风扇.本文介绍了BridgeSwitch系列产品亮点,系列框图,采用BRD1265C三相逆变器设计DER654电路图以及采用BridgeSwitch系列马达驱动器300W三相逆变器参考设计DER654主要特性和指标,电路图,材料清单和PCB设计图.

The BridgeSwitch™ family of integrated half-bridges dramaticallysimplifies the development and production of high-voltage inverterdriven 2- or 3-phase PM or BLDC motor drives. It incorporates twohigh-voltage N-channel power FREDFETs with low and high-side driversin a single small-outline package. The internal power FREDFETs offerultra-soft and ultrafast diodes ideally suited for hard switched inverterdrives. Both drivers are self-supplied eliminating the need for anexternal auxiliary power supply. BridgeSwitch provides a uniqueinstantaneous phase current output signal simplifying implementation ofsensor-less control schemes. The low-profile, compact footprint surfacemount package offers extended creepage distances and allows heatsinking of both power FREDFETs through the printed circuit board.

BridgeSwitch offers internal fault protection functions and externalsystem level monitoring. Internal fault protection includes cycle-by-cycle current limit for both FREDFETs and two level thermal overloadprotection. External system level monitoring includes DC bus sensingwith four undervoltage levels and one overvoltage level as well asdriving external sensors such as an NTC. The bi-directional bussedsingle wire status interface reports observed status changes.

BridgeSwitch系列产品亮点:

Highest Performance and Design Flexibility
• Fully integrated half-bridge stage with up to 98% efficiency
• Eliminates external heat sink at rated continuous RMS current
• 600 V N-channel power FREDFETs
• Ultra-soft, fast recovery diode
• Accurate instantaneous phase current information output (BRD126X)
• Eliminates external sensing and amplification circuitry
• Self-biased low-side and high-side drivers
• Eliminates need for auxiliary power supply
• Small footprint surface mount inSOP-24C package
• Exposed pads enable heat sinking through PCB
• Controlled FREDFET switching speed reduces EMI
Enhanced Safety and Reliability Features
• Adustable cycle-by-cycle current limit for both FREDFETs
• Fail-safe operation
• Internal dual level thermal overload protection
• Self-configuring system level monitoring input
• Four level DC bus undervoltage
• DC bus overvoltage
• System temperature
• Adaptive dead time
• Simultaneous conduction lockout protection
Status Interface
• Bi-directional bussed open Drain single wire interface
• Reports status updates to system MCU
• Successful power-up
• Internal over-current or temperature faults
• System level faults
• Includes device identification
• Status query through system MCU
• Device fault reset through system MCU

BridgeSwitch系列应用:

• 2- or 3-phase high-voltage PM and BLDC motor drives
• Up to 300 W typical inverter output power
• Appliances including dish washers and refrigerators
• Condenser fans in high efficiency air conditioners

图1.三相逆变器电路(BRD126X)

图2.BRD116x功能框图

图3.BRD126x功能框图

图4.采用BRD1265C三相逆变器设计DER654电路图

DER654:采用BridgeSwitch系列马达驱动器300W三相逆变器参考设计

This document is an engineering report describing a 300 W, >98% efficiency 3-phase inverter for a high-voltage brushless DC (BLDC) motor drive using three BridgeSwitchBRD1265C devices. This design shows the device performance, internal and system level monitoring and fault protection facilitated by the high level of integration of the BridgeSwitch half-bridge motor driver IC.

This document contains the inverter specification, schematic, bill of materials, printed circuit board layout, and test setup. Provided waveform plots and performance data employed a traditional six-step trapezoidal BLDC motor control scheme. The design can also operate with other control methods such as sinusoidal commutation.

DER654主要特性:

 BridgeSwitch – high-voltage half-bridge motor driver
 Integrated 600 V FREDFETs with ultra-soft, fast recovery diodes
 Fully self-biased operation – no auxiliary power supply needed
 No external heat sink
 Instantaneous phase current output signal
 High-side and low-side cycle-by-cycle current limit
 Two level device over-temperature protection
 High-voltage bus monitor with four undervoltage threshold and one overvoltage threshold
 System level temperature monitor
 Single wire status update communication bus
 Supports trapezoidal and sinusoidal commutation

图5.DER645参考设计板外形图
逆变器主要指标:


图6.采用BridgeSwitch系列300W三相逆变器功率级电路图
300W三相逆变器材料清单:


图7.300W三相逆变器PCB顶层和底层布局图

图8.300W三相逆变器PCB顶层和底层测试平台连接图
详情请见:
https://motor-driver.powerint.cn/sites/default/files/product-docs/bridgeswitch_family_datasheet.pdf
https://motor-driver.powerint.cn/sites/default/files/PDFFiles/der-654_300watt_3-phase_inverter_using_bridgeswitch.pdf
bridgeswitch_family_datasheet.PDF
der-654_300watt_3-phase_inverter_using_bridgeswitch.PDF

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